:root{
 --primary:#4A9BD4;--primary-2:#6DB7E6;--sky:#8CCCF0;--sky-light:#CBE9F8;--sky-soft:#EDF8FD;
 --cream:#FFF9EE;--cream-2:#FFF4DF;--cream-3:#FDFBF6;--navy:#17344A;--navy-2:#244A64;--navy-soft:#4F6D80;
 --accent:#EF8E68;--accent-2:#F2B36F;--accent-soft:#FFF0E8;--bg:#FFFDF8;--bg-blue:#F3FAFE;--bg-cream:#FFF9EE;
 --surface:#FFFFFF;--surface-blue:#F8FCFF;--surface-cream:#FFFDF8;--text:#203542;--text-2:#5E7481;--text-3:#8A9AA3;
 --line:rgba(74,155,212,.12);--line-strong:rgba(74,155,212,.24);--line-warm:rgba(239,142,104,.14);
 --shadow:0 8px 28px rgba(31,88,124,.08);--shadow-hover:0 16px 42px rgba(31,88,124,.14);
 --radius:12px;--radius-card:18px;--radius-large:26px;--radius-pill:999px;--wrap:1320px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.65}body.search-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}button{color:inherit}.wrap{width:min(var(--wrap),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:14px;top:-80px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.top-notice{background:var(--navy);color:#eaf7ff;font-size:13px}.top-notice .wrap{display:flex;justify-content:center;gap:18px;padding:7px 0}.top-notice a{color:var(--sky-light);text-decoration:underline}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,249,238,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 5px 16px rgba(31,88,124,.04)}.header-row{min-height:76px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;min-width:170px}.brand img{border-radius:13px}.brand span{display:grid;line-height:1.1}.brand strong{font-size:21px}.brand small{margin-top:5px;color:var(--primary);font-size:9px;letter-spacing:.14em}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.desktop-nav a,.mega-strip a{padding:8px 11px;border-radius:10px;font-size:14px;color:var(--navy-soft)}.desktop-nav a:hover,.desktop-nav a.is-active{color:var(--navy);background:var(--sky-soft)}.header-actions{display:flex;align-items:center;gap:8px}.icon-btn,.text-btn,.primary-btn,.secondary-btn{border:0;border-radius:var(--radius-pill);padding:10px 16px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}.icon-btn,.text-btn,.secondary-btn{background:transparent;border:1px solid var(--line-strong)}.primary-btn{background:var(--primary);color:#fff;font-weight:700}.primary-btn:hover{background:#3f8fc8}.primary-btn.compact{padding:9px 14px}.secondary-btn{background:var(--cream);font-weight:650}.mega-strip{border-top:1px solid rgba(74,155,212,.08);background:rgba(255,255,255,.6)}.mega-strip .wrap{display:flex;gap:6px;align-items:center;overflow:auto;padding-block:6px;scrollbar-width:none}.mega-strip a{white-space:nowrap}.mobile-menu{border-top:1px solid var(--line);background:var(--surface)}.mobile-menu[hidden]{display:none}.mobile-menu .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding-block:12px}.mobile-menu a{padding:10px;border-radius:10px;background:var(--bg-blue);text-align:center}.menu-toggle{display:none}
.search-modal{display:none;position:fixed;inset:0;z-index:1000;background:rgba(15,42,61,.52);padding:24px;align-items:flex-start;justify-content:center;overflow:auto}.search-modal.is-open{display:flex}.search-modal[hidden]{display:none !important}.search-panel{position:relative;width:min(780px,100%);margin-top:min(14vh,130px);padding:38px;border-radius:28px;background:var(--surface-cream);box-shadow:0 28px 80px rgba(15,42,61,.24)}.search-close{position:absolute;right:20px;top:20px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:white;cursor:pointer;font-size:24px}.search-panel h2{font-size:clamp(26px,4vw,42px);margin:8px 0}.search-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:24px}.search-form input{width:100%;border:1px solid var(--line-strong);border-radius:var(--radius-pill);padding:14px 18px;background:#fff;outline:none}.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(74,155,212,.12)}.search-suggestions{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.search-suggestions a,.pill,.chip{padding:6px 11px;border-radius:var(--radius-pill);background:var(--sky-soft);color:var(--navy-2);font-size:13px}
main{min-height:60vh}.section{padding:72px 0}.section.tight{padding:46px 0}.section.blue{background:var(--bg-blue)}.section.cream{background:var(--bg-cream)}.section.dark{background:var(--navy);color:#fff}.section.dark .section-head p,.section.dark .card-meta,.section.dark small{color:#c8dbe7}.section.dark .text-link{color:var(--sky-light)}.section.hero-section{padding:64px 0 80px;background:radial-gradient(circle at 88% 5%,rgba(140,204,240,.34),transparent 32%),linear-gradient(135deg,var(--cream) 0%,#fff 48%,var(--sky-soft) 100%);overflow:hidden}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:26px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.12;margin:6px 0 8px;letter-spacing:-.02em}.section-head p{max-width:760px;margin:0;color:var(--text-2)}.eyebrow,.card-kicker{display:inline-block;color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.text-link{color:var(--primary);font-weight:700;white-space:nowrap}.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(360px,5fr);gap:56px;align-items:center}.hero-copy h1{font-size:clamp(46px,7vw,84px);line-height:1.02;letter-spacing:-.045em;margin:10px 0 24px;max-width:860px}.hero-copy>p{font-size:18px;color:var(--text-2);max-width:720px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.hero-search{display:flex;gap:10px;max-width:640px;padding:8px;border-radius:999px;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line)}.hero-search input{border:0;outline:0;flex:1;padding:8px 14px;background:transparent}.hero-visual{position:relative}.hero-visual>img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:34px;box-shadow:var(--shadow-hover)}.float-panel{position:absolute;left:-34px;bottom:32px;width:min(360px,88%);background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-radius:20px;padding:18px;box-shadow:var(--shadow-hover);border:1px solid rgba(255,255,255,.7)}.float-panel strong{display:block;font-size:18px;margin-bottom:6px}.float-panel-list{display:grid;gap:7px;font-size:13px;color:var(--text-2)}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat-box{padding:18px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.stat-box strong{display:block;font-size:28px;color:var(--primary)}.stat-box span{color:var(--text-2);font-size:13px}
.chip-row,.avatar-rail,.content-rail{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x proximity;scrollbar-width:thin}.chip{white-space:nowrap;border:1px solid var(--line);background:var(--surface);font-weight:650}.content-rail>*{min-width:min(360px,84vw);scroll-snap-align:start}.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.video-grid.compact{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.video-card{min-width:0}.media-thumb{display:block;position:relative;overflow:hidden;border-radius:var(--radius-card);background:#d7eaf6;aspect-ratio:16/9}.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}.video-card:hover .media-thumb img{transform:scale(1.02)}.play-icon{position:absolute;left:15px;bottom:14px;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.9);display:grid;place-items:center;color:var(--navy);transition:transform .2s}.video-card:hover .play-icon{transform:scale(1.06)}.duration{position:absolute;right:10px;bottom:10px;padding:3px 7px;border-radius:7px;background:rgba(15,42,61,.8);color:#fff;font-size:12px}.card-body{padding:14px 2px}.card-body h3,.media-card h3,.tutorial-card h3,.discover-card h3{font-size:18px;line-height:1.35;margin:6px 0 7px}.card-body p,.media-card p,.tutorial-card p,.discover-card p{margin:0;color:var(--text-2);font-size:14px}.card-meta{display:flex;justify-content:space-between;gap:10px;color:var(--text-3);font-size:12px;margin-top:12px}.feature-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:22px}.feature-layout .lead-video .media-thumb{aspect-ratio:16/10}.mini-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}.mini-stack .video-card .card-body p{display:none}.magazine-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;grid-template-rows:auto auto;gap:18px}.magazine-grid>:first-child{grid-row:1/3}.magazine-grid>:first-child .media-thumb{height:100%;min-height:420px}.split-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,.75fr);gap:34px;align-items:start}.rank-list{display:grid;gap:8px}.rank-item{display:grid;grid-template-columns:38px 1fr auto;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.rank-no{font-size:22px;font-weight:900;color:var(--primary)}.rank-item strong{display:block}.rank-item small{display:block;color:var(--text-3)}.rank-item>span:last-child{color:var(--text-3);font-size:12px}.masonry-like{columns:3 280px;column-gap:18px}.masonry-like .video-card{break-inside:avoid;margin-bottom:24px}.masonry-like .video-card:nth-child(3n+2) .media-thumb{aspect-ratio:4/3}.masonry-like .video-card:nth-child(3n+3) .media-thumb{aspect-ratio:16/10}.story-card{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:20px;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line)}.story-card img{width:180px;height:150px;object-fit:cover;border-radius:14px}.story-card h3{margin:4px 0 8px}.story-card p{margin:0;color:var(--text-2)}.story-list{display:grid;gap:18px}.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.bento>*{grid-column:span 4}.bento>*:nth-child(1),.bento>*:nth-child(6){grid-column:span 8}.bento>*:nth-child(4){grid-column:span 5}.bento>*:nth-child(5){grid-column:span 7}
.live-stage{display:grid;grid-template-columns:1.45fr .9fr;gap:24px}.live-main .live-media{aspect-ratio:16/9}.live-side{display:grid;gap:12px}.live-card{overflow:hidden;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line-warm)}.live-media{position:relative;aspect-ratio:16/9;overflow:hidden}.live-media img{width:100%;height:100%;object-fit:cover}.live-badge{position:absolute;top:11px;left:11px;padding:5px 9px;border-radius:999px;background:rgba(23,52,74,.85);color:#fff;font-size:11px;font-weight:800}.live-badge.is-live{background:var(--accent)}.live-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.live-grid .card-body{padding:16px}.anchor-rail{display:flex;gap:20px;overflow-x:auto;padding:8px 2px 16px}.anchor-card{min-width:250px;display:grid;grid-template-columns:78px 1fr;gap:14px;align-items:start;padding:16px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}.anchor-card img{width:78px;height:78px;object-fit:cover;border-radius:50%;border:4px solid var(--sky-soft)}.anchor-card h3{margin:2px 0}.anchor-card strong{font-size:13px}.anchor-card p{color:var(--text-2);font-size:13px;margin:6px 0}.anchor-card small{color:var(--text-3)}.status-dot{display:inline-block;width:7px;height:7px;background:var(--accent);border-radius:50%;margin-right:5px}.anchor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.anchor-grid .anchor-card{min-width:0}
.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.topic-card{padding:20px;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line)}.topic-card h3{font-size:18px;margin:12px 0 8px}.topic-card p{margin:0;color:var(--text-2)}.topic-meta{display:flex;gap:8px;align-items:center;color:var(--text-3);font-size:12px}.topic-meta time{margin-left:auto}.avatar-dot{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--sky-soft);color:var(--primary);font-weight:800}.topic-related{display:flex;gap:8px;margin:13px 0;padding:9px 10px;border-radius:10px;background:var(--bg-blue);font-size:12px}.topic-related span{color:var(--primary)}.timeline{display:grid;gap:0}.timeline .topic-card{border-radius:0;border-width:0 0 1px;background:transparent;padding-left:0;padding-right:0}.discover-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.discover-card{overflow:hidden;border-radius:22px;background:var(--surface);border:1px solid var(--line)}.discover-card img{width:100%;height:150px;object-fit:cover}.discover-card>div{padding:16px}.trend-layout{display:grid;grid-template-columns:1fr 1fr;gap:34px}.trend-list{display:grid}.trend-row{display:grid;grid-template-columns:1fr auto;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.trend-row span{color:var(--accent);font-weight:750}.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}.tag-cloud a{padding:9px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-weight:650}.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.media-card{overflow:hidden;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line)}.media-card img{width:100%;height:200px;object-fit:cover}.media-card>div{padding:18px}.media-list{display:grid;gap:16px}.media-list .media-card{display:grid;grid-template-columns:260px 1fr}.media-list .media-card img{height:100%;min-height:190px}.tutorial-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tutorial-card{overflow:hidden;border-radius:var(--radius-card);background:var(--surface);border:1px solid var(--line)}.tutorial-card img{width:100%;aspect-ratio:16/9;object-fit:cover}.tutorial-card>div{padding:16px}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.info-card{padding:24px;border-radius:22px;background:var(--surface);border:1px solid var(--line)}.info-card h3{margin:5px 0 9px}.info-card p{color:var(--text-2);margin:0}.prose{max-width:860px}.prose h1{font-size:clamp(38px,6vw,68px);line-height:1.06}.prose p{font-size:17px;color:var(--text-2)}.prose-panel{padding:28px;border-radius:24px;background:var(--surface);border:1px solid var(--line);margin:18px 0}.prose-panel h2{margin-top:0}.steps{counter-reset:step;display:grid;gap:16px}.step{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:20px;border-radius:18px;background:var(--surface);border:1px solid var(--line)}.step:before{counter-increment:step;content:counter(step);width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--sky-soft);color:var(--primary);font-weight:900}.app-showcase{display:grid;grid-template-columns:1fr .75fr;gap:50px;align-items:center}.device-art{position:relative;max-width:580px;margin:auto}.device-art .app-img{border-radius:32px;width:78%;box-shadow:var(--shadow-hover)}.device-art .phone-img{position:absolute;width:38%;right:0;bottom:-12%;border-radius:28px;box-shadow:var(--shadow-hover)}.download-state{padding:22px;border-radius:18px;background:var(--accent-soft);border:1px solid var(--line-warm)}.disabled-btn{display:inline-flex;margin-top:12px;padding:10px 16px;border-radius:999px;background:#dfe7eb;color:#6d7c84;cursor:not-allowed}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--surface);overflow:hidden}.faq-question{width:100%;border:0;background:transparent;padding:18px 20px;display:flex;justify-content:space-between;gap:18px;text-align:left;font-weight:700;cursor:pointer}.faq-answer{padding:0 20px 18px}.faq-answer[hidden]{display:none}.faq-answer p{margin:0;color:var(--text-2)}
.page-hero{padding:68px 0;background:linear-gradient(135deg,var(--cream),var(--sky-soft))}.page-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:46px;align-items:center}.page-hero h1{font-size:clamp(42px,6vw,72px);line-height:1.05;margin:8px 0 18px}.page-hero p{font-size:17px;color:var(--text-2);max-width:760px}.page-hero img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}.callout{padding:24px;border-left:4px solid var(--primary);border-radius:0 18px 18px 0;background:var(--sky-soft)}.callout.warm{border-color:var(--accent);background:var(--accent-soft)}.empty-state{padding:50px;border-radius:24px;text-align:center;background:var(--surface);border:1px dashed var(--line-strong)}.search-result-head{display:flex;justify-content:space-between;gap:18px;align-items:center}.search-result-list{display:grid;gap:18px}.search-result-list .video-card{display:grid;grid-template-columns:280px 1fr;gap:18px}.search-result-list .media-thumb{height:100%;min-height:160px}.player-shell{background:#0f2a3d;border-radius:26px;overflow:hidden}.player-shell video{width:100%;aspect-ratio:16/9;display:block;background:#081a26}.player-placeholder{aspect-ratio:16/9;display:grid;place-items:center;color:#cbe9f8;background:linear-gradient(135deg,#0f2a3d,#17344a);text-align:center;padding:30px}.content-detail{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px}.article-body{font-size:17px}.article-body h1{font-size:clamp(34px,5vw,54px);line-height:1.1}.sidebar{display:grid;gap:14px}.sidebar .video-card .card-body p{display:none}.notice-bar{padding:14px 18px;border-radius:14px;background:var(--cream-2);color:var(--navy-2)}
.site-footer{background:var(--navy);color:#ecf7fd;padding:60px 0 32px;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:36px}.footer-grid h3{font-size:14px;color:var(--sky-light);margin-top:0}.footer-grid>div{display:grid;align-content:start;gap:8px}.footer-grid a{color:#d2e5ef;font-size:14px}.footer-brand strong{font-size:32px}.footer-brand p{color:#c0d5e0;max-width:360px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#9fb8c5;font-size:12px}.mobile-bottom-nav{display:none}.back-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);background:#fff;box-shadow:var(--shadow);cursor:pointer;z-index:90}.back-top[hidden]{display:none}
@media(max-width:1080px){.desktop-nav{display:none}.menu-toggle{display:inline-flex}.mega-strip{display:none}.hero-grid,.page-hero-grid,.app-showcase{grid-template-columns:1fr}.hero-visual{max-width:720px}.hero-visual>img{aspect-ratio:16/10}.float-panel{left:20px}.video-grid.compact,.tutorial-grid,.anchor-grid,.discover-grid{grid-template-columns:repeat(2,1fr)}.video-grid,.live-grid,.media-grid{grid-template-columns:repeat(2,1fr)}.feature-layout,.split-layout,.live-stage,.trend-layout,.content-detail{grid-template-columns:1fr}.footer-grid{grid-template-columns:2fr repeat(2,1fr)}.footer-grid>div:nth-child(n+4){margin-top:14px}.bento>*{grid-column:span 6!important}}
@media(max-width:720px){.wrap{width:min(100% - 28px,var(--wrap))}.top-notice{display:none}.header-row{min-height:66px}.brand{min-width:0}.brand small{display:none}.brand img{width:38px;height:38px}.text-btn,.header-actions .primary-btn{display:none}.header-actions{margin-left:auto}.section{padding:52px 0}.section.tight{padding:34px 0}.section.hero-section{padding:40px 0 58px}.hero-copy h1{font-size:46px}.hero-grid{gap:34px}.hero-visual>img{aspect-ratio:4/3;border-radius:24px}.float-panel{position:relative;left:auto;bottom:auto;margin:-28px 14px 0;width:auto}.hero-search{border-radius:18px;display:grid;grid-template-columns:1fr}.hero-search button{width:100%}.stat-grid{grid-template-columns:1fr 1fr}.section-head{align-items:start;flex-direction:column;gap:10px}.section-head h2{font-size:32px}.video-grid,.video-grid.compact,.live-grid,.media-grid,.anchor-grid,.discover-grid,.tutorial-grid,.info-grid,.topic-grid{grid-template-columns:1fr}.content-rail .video-card{min-width:82vw}.video-grid.mobile-2{grid-template-columns:1fr 1fr;gap:12px}.video-grid.mobile-2 .card-body p{display:none}.feature-layout{grid-template-columns:1fr}.mini-stack{grid-template-columns:1fr 1fr}.magazine-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto}.magazine-grid>:first-child{grid-column:1/3;grid-row:auto}.magazine-grid>:first-child .media-thumb{min-height:0}.masonry-like{columns:1}.rank-item{grid-template-columns:32px 1fr}.rank-item>span:last-child{display:none}.anchor-rail .anchor-card{min-width:82vw}.media-list .media-card,.search-result-list .video-card{grid-template-columns:1fr}.media-list .media-card img{min-height:0}.story-card{grid-template-columns:110px 1fr}.story-card img{width:110px;height:130px}.bento{grid-template-columns:1fr}.bento>*{grid-column:1!important}.search-panel{padding:28px 20px}.search-form{grid-template-columns:1fr}.mobile-menu .wrap{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/3}.footer-bottom{flex-direction:column}.mobile-bottom-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:80;background:rgba(255,253,248,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:8px 8px max(8px,env(safe-area-inset-bottom))}.mobile-bottom-nav a{text-align:center;font-size:12px;padding:6px}.site-footer{padding-bottom:92px}.back-top{bottom:78px}.page-hero{padding:46px 0}.app-showcase{gap:30px}.device-art{margin-bottom:45px}}